Introduce
Melt in the city and lie in Hulan river valley of southern, loose soft plain in Heilongjiang Province. 305 kilometers wide from east to west, 308 kilometers long from south to north, its outline of region, like jumping on river section converged in Song Hua River, Nenjiang to small a carp in west hillfoot of Xing’an Mountains, its head, towards the Northeast, tail, in southwest, oblique to lie at the loose tender plain in the north of the Great Wall. The concrete geographical position is 124 point 13 degrees of east longitude ‘ to 128 degrees of 30\ ‘, 45 point 3 degrees in the north latitude ‘ to 48 degrees of 02\ ‘. Boarded by with Xunke county, Beian, Baiquan county, Yian county sequentially from east to west in the north; Adjoined with Lindian county, Daqing southwards sequentially by the north in the west; The south is with starting the state county, starting the source county, one pair of cities to link sequentially from west to east; East and the southeast are from the north southwards with the market, ferreous cities, open river counties, lily magnolia counties, Bayan counties, Hulan counties and juncture of Harbin of Yichun sequentially.
Terrain the Northeast of the topographical ground form Suihua is high, the southwest is low, namely original for the river Gu Ping from the low hills, high plain transition. The ground form of the whole city can be divided into low mountains and hills, mound high plain, mound high plain of hillock of hillock, sloped in high plain, first class terrace a little, overflowed the beach high according to its characteristic of shape The low mountains and hills are mainly distributed in Qing’an County, Suileng county and Helen municipal Northeast, it is the hilly country in front of the mountains of the small west hillfoot of Xing’an Mountains, the terrain is relatively high, the general height above sea level is 300- 600 meters (supreme officer five grandfather mountains are 820.3 meters high, it is fitted domestically that celebrating) ,50- 110 meters as to the discrepancy in elevation; The mound high plain is mainly distributed in farm, red mere farm, Helen farm of Suileng in the hillock, and the southwest of Qing’an County, Suileng county, Helen municipal east and Northeast, the height above sea level is 240- 360 meters, relative discrepancy in elevation is 20- 60 meters; Mound high plain north, middle part and south distributed in Helen city mainly in the hillock, the north of the north forest zone, the east of Wangkui County, bright water county, Qinggang County, the east of the blue west county, the general height above sea level is 200- 240 meters, specific incomplete mound high Cheng above sea level is about 380 meters.
Slope from the Northeast to southwest slowly, 5 degrees of slope – 10 degrees; Slope a little high plain present pieces of banding, distribute along the intersection of hillock and the intersection of mound and high the intersection of plain and edge, mainly west, the southwest distributed in municipal Helen, bright water county, middle part, the south of Wangkui County, Qinggang County, the south of the blue west county, and Anda, starting the north of the east city, the height above sea level is 180- 210 meters. Wide and little to slope to river smooth ground form its, 3 of slope – 5, take the form of a little wavy to rise and fall; First class terrace and left bank distributed in river mainly, 3- 4 kilometers wide, and bright water county, the west of Qinggang County, Anda, starting municipal the most areas in the east. 160-180 of height above sea level, the intersection of steps and face width but little to slope to the riverbed smooth, the slope is below 3 degrees; Overflow the beach to mainly distribute over both sides of river high, the height above sea level is 155- 175 meters, overflow the beach widely, the terrain is smooth; It is low to overflow the beach and present a banding to distribute along both sides of river, it is generally 0.5- 1 kilometers wide.
